101. Sectoral coverage and prices of carbon pricing mechanisms introduced since 1990 Bookmark Format Single study
103. SIPRI's databases (Stockholm International Peace Research Institute) Bookmark Format Data archive or collection
108. Transition to agriculture and first state presence: A global analysis Bookmark Format Single study
109. Transnational Social Movement Organization Dataset, 1953-2003 Bookmark Format Series - completed
110. United Nations Surveys of Crime Trends and Operations of Criminal Justice Systems (1970+) Bookmark Format Series - ongoing